🎨 style: standardize dropdown styling & fix z-Index layering (#6939)

* fix: Dropdown settings

* refactor: classname cleanup

* refactor: export modal

* fix: Export dropdown

client/src/components/Audio/Voices.tsx

@@ -29,7 +29,7 @@ export function BrowserVoiceDropdown() {
         onChange={handleVoiceChange}
         sizeClasses="min-w-[200px] !max-w-[400px] [--anchor-max-width:400px]"
         testId="BrowserVoiceDropdown"
-        className="rounded-xl"
+        className="z-50"
       />
     </div>
   );
@@ -58,7 +58,7 @@ export function ExternalVoiceDropdown() {
         onChange={handleVoiceChange}
         sizeClasses="min-w-[200px] !max-w-[400px] [--anchor-max-width:400px]"
         testId="ExternalVoiceDropdown"
-        className="rounded-xl"
+        className="z-50"
       />
     </div>
   );

client/src/components/Nav/ExportConversation/ExportModal.tsx

@@ -1,10 +1,18 @@
 import filenamify from 'filenamify';
-import { useEffect, useState } from 'react';
+import { useEffect, useState, useMemo, useCallback } from 'react';
 import type { TConversation } from 'librechat-data-provider';
 import { OGDialog, Button, Input, Label, Checkbox, Dropdown } from '~/components/ui';
 import OGDialogTemplate from '~/components/ui/OGDialogTemplate';
 import { useLocalize, useExportConversation } from '~/hooks';
 
+const TYPE_OPTIONS = [
+  { value: 'screenshot', label: 'screenshot (.png)' },
+  { value: 'text', label: 'text (.txt)' },
+  { value: 'markdown', label: 'markdown (.md)' },
+  { value: 'json', label: 'json (.json)' },
+  { value: 'csv', label: 'csv (.csv)' },
+];
+
 export default function ExportModal({
   open,
   onOpenChange,
@@ -21,20 +29,12 @@ export default function ExportModal({
   const localize = useLocalize();
 
   const [filename, setFileName] = useState('');
-  const [type, setType] = useState('Select a file type');
+  const [type, setType] = useState<string>('screenshot');
 
   const [includeOptions, setIncludeOptions] = useState<boolean | 'indeterminate'>(true);
   const [exportBranches, setExportBranches] = useState<boolean | 'indeterminate'>(false);
   const [recursive, setRecursive] = useState<boolean | 'indeterminate'>(true);
 
-  const typeOptions = [
-    { value: 'screenshot', label: 'screenshot (.png)' },
-    { value: 'text', label: 'text (.txt)' },
-    { value: 'markdown', label: 'markdown (.md)' },
-    { value: 'json', label: 'json (.json)' },
-    { value: 'csv', label: 'csv (.csv)' },
-  ];
-
   useEffect(() => {
     if (!open && triggerRef && triggerRef.current) {
       triggerRef.current.focus();
@@ -49,17 +49,19 @@ export default function ExportModal({
     setRecursive(true);
   }, [conversation?.title, open]);
 
-  const _setType = (newType: string) => {
-    const exportBranchesSupport = newType === 'json' || newType === 'csv' || newType === 'webpage';
-    const exportOptionsSupport = newType !== 'csv' && newType !== 'screenshot';
-
-    setExportBranches(exportBranchesSupport);
-    setIncludeOptions(exportOptionsSupport);
+  const handleTypeChange = useCallback((newType: string) => {
+    const branches = newType === 'json' || newType === 'csv' || newType === 'webpage';
+    const options = newType !== 'csv' && newType !== 'screenshot';
+    setExportBranches(branches);
+    setIncludeOptions(options);
     setType(newType);
-  };
+  }, []);
 
-  const exportBranchesSupport = type === 'json' || type === 'csv' || type === 'webpage';
-  const exportOptionsSupport = type !== 'csv' && type !== 'screenshot';
+  const exportBranchesSupport = useMemo(
+    () => type === 'json' || type === 'csv' || type === 'webpage',
+    [type],
+  );
+  const exportOptionsSupport = useMemo(() => type !== 'csv' && type !== 'screenshot', [type]);
 
   const { exportConversation } = useExportConversation({
     conversation,
@@ -94,7 +96,13 @@ export default function ExportModal({
                 <Label htmlFor="type" className="text-left text-sm font-medium">
                   {localize('com_nav_export_type')}
                 </Label>
-                <Dropdown value={type} onChange={_setType} options={typeOptions} portal={false} />
+                <Dropdown
+                  value={type}
+                  onChange={handleTypeChange}
+                  options={TYPE_OPTIONS}
+                  className="z-50"
+                  portal={false}
+                />
               </div>
             </div>
             <div className="grid w-full gap-6 sm:grid-cols-2">
@@ -108,7 +116,6 @@ export default function ExportModal({
                       id="includeOptions"
                       disabled={!exportOptionsSupport}
                       checked={includeOptions}
-                      className="focus:ring-opacity-20 dark:border-gray-500 dark:bg-gray-700 dark:text-gray-50 dark:focus:ring-gray-600 dark:focus:ring-opacity-50 dark:focus:ring-offset-0"
                       onCheckedChange={setIncludeOptions}
                     />
                     <label
@@ -131,7 +138,6 @@ export default function ExportModal({
                     id="exportBranches"
                     disabled={!exportBranchesSupport}
                     checked={exportBranches}
-                    className="focus:ring-opacity-20 dark:border-gray-500 dark:bg-gray-700 dark:text-gray-50 dark:focus:ring-gray-600 dark:focus:ring-opacity-50 dark:focus:ring-offset-0"
                     onCheckedChange={setExportBranches}
                   />
                   <label
@@ -150,12 +156,7 @@ export default function ExportModal({
                     {localize('com_nav_export_recursive_or_sequential')}
                   </Label>
                   <div className="flex h-[40px] w-full items-center space-x-3">
-                    <Checkbox
-                      id="recursive"
-                      checked={recursive}
-                      className="focus:ring-opacity-20 dark:border-gray-500 dark:bg-gray-700 dark:text-gray-50 dark:focus:ring-gray-600 dark:focus:ring-opacity-50 dark:focus:ring-offset-0"
-                      onCheckedChange={setRecursive}
-                    />
+                    <Checkbox id="recursive" checked={recursive} onCheckedChange={setRecursive} />
                     <label
                       htmlFor="recursive"
                       className="text-sm font-medium leading-none peer-disabled:cursor-not-allowed peer-disabled:opacity-70 dark:text-gray-50"

client/src/components/Nav/SettingsTabs/Chat/FontSizeSelector.tsx

@@ -30,7 +30,7 @@ export default function FontSizeSelector() {
         onChange={handleChange}
         testId="font-size-selector"
         sizeClasses="w-[150px]"
-        className="rounded-xl"
+        className="z-50"
       />
     </div>
   );

client/src/components/Nav/SettingsTabs/General/General.tsx

@@ -59,7 +59,7 @@ export const ThemeSelector = ({
         options={themeOptions}
         sizeClasses="w-[180px]"
         testId="theme-selector"
-        className="rounded-xl"
+        className="z-50"
       />
     </div>
   );
@@ -113,7 +113,7 @@ export const LangSelector = ({
         onChange={onChange}
         sizeClasses="[--anchor-max-height:256px]"
         options={languageOptions}
-        className="rounded-xl"
+        className="z-50"
       />
     </div>
   );

client/src/components/Nav/SettingsTabs/Speech/STT/EngineSTTDropdown.tsx

@@ -32,7 +32,7 @@ const EngineSTTDropdown: React.FC<EngineSTTDropdownProps> = ({ external }) => {
         options={endpointOptions}
         sizeClasses="w-[180px]"
         testId="EngineSTTDropdown"
-        className="rounded-xl"
+        className="z-50"
       />
     </div>
   );

client/src/components/Nav/SettingsTabs/Speech/TTS/EngineTTSDropdown.tsx

@@ -31,9 +31,8 @@ const EngineTTSDropdown: React.FC<EngineTTSDropdownProps> = ({ external }) => {
         onChange={handleSelect}
         options={endpointOptions}
         sizeClasses="w-[180px]"
-        anchor="bottom start"
         testId="EngineTTSDropdown"
-        className="rounded-xl"
+        className="z-50"
       />
     </div>
   );

client/src/components/ui/Dropdown.tsx

@@ -70,7 +70,7 @@ const Dropdown: React.FC<DropdownProps> = ({
       <Select.Select
         store={selectProps}
         className={cn(
-          'focus:ring-offset-ring-offset relative inline-flex items-center justify-between rounded-lg border border-input bg-background px-3 py-2 text-sm text-text-primary transition-all duration-200 ease-in-out hover:bg-accent hover:text-accent-foreground focus:ring-ring-primary',
+          'focus:ring-offset-ring-offset relative inline-flex items-center justify-between rounded-xl border border-input bg-background px-3 py-2 text-sm text-text-primary transition-all duration-200 ease-in-out hover:bg-accent hover:text-accent-foreground focus:ring-ring-primary',
           iconOnly ? 'h-full w-10' : 'w-fit gap-2',
           className,
         )}

client/src/style.css

@@ -2518,7 +2518,7 @@ html {
   border-width: 1px;
   border-style: solid;
   border-color: var(--border-light);
-  background-color: hsl(var(--background));
+  background-color: var(--surface-primary);
   padding: 0.5rem;
   color: var(--text-primary);
   box-shadow:
@@ -2542,7 +2542,7 @@ html {
 }
 
 .popover-ui:where(.dark, .dark *) {
-  background-color: hsl(var(--secondary));
+  background-color: var(--surface-secondary);
   color: var(--text-secondary);
   box-shadow:
     0 10px 15px -3px rgb(0 0 0 / 0.25),